The Jatco CVT (JF015E on 4-cyl, JF018E on V6) used in the 2013–2018 Altima is the most significant defect on this car. NHTSA received over 2,000 complaints specifically about CVT shudder, sudden hesitation at highway speed, and outright failure in the 70,000–120,000 mile range. Nissan extended the powertrain warranty for CVT issues to 84 months/84,000 miles on certain model years after regulatory pressure. A failed CVT costs $3,500–$5,000 to replace.
Before the test drive: enter the VIN at nhtsa.gov to check for open recalls and confirm warranty history. During the drive: accelerate briskly from 20 to 60 mph — the CVT should pull smoothly and continuously; any shudder, belt-slip sensation, or power interruption = CVT wear. Also hold 45 mph at light throttle for 30 seconds and feel for vibration through the seat.
Est. cost: $3,500–$5,000 CVT replacement (remanufactured unit)
Source: NHTSA: 2,000+ CVT complaints + Nissan extended warranty campaign